P7b1 CJJFAX 762 Sun 22 Dec 15:49/20 W<,,4<,,4<,,,lh,,lh,,,4 1/4 HALLEY RETURN OF THE COMET - "once a lifetime" Halley's comet is making a return to our skies to the sort of accompaniment that greeted it 76 years ago. Although many of the myths about the comet have now been dismissed, its attraction as a "once-in-a-lifetime" experience remains a big drawcard. It is the only bright comet which returns at regular and predictable intervals, and its scientific reception is formidable - it is still a fact that we do not know much about the structure of comets. Comet orbit details 722s7 MoreP7b1 CJJFAX 721 Sun 22 Dec 16:14/32 ,,4<,,4<,,,lh,,lh,,,4 2/4 HALLEY -,, -.,-.*,,.*/,/ R TURN OF THE COMET - C efax pag s Cjefax is providing this special r fer nce section until th fir t few months of 1986. In it you can find a sky map (page 728) that will b updated weekly. A program for the BBC Microcomputer (729) will h lp you locate th comet with great accuracy for an tim of an day in 1985 and 1986. There is a 10-page profile of the man whose achievements as a scientist have been greatly over-shadowed bz his link with the comet - Edmond Halley (726). Recommended books 724s8 MoreP7b1 CJJFAX 762 Sun 22 Dec 1v:50/56 3/4 HALLEY J RJTU5N OF THE COMET - Ceefax pages There are hints on how best to see the comet (724) - even if it is just a smudged blur, and not the meteor-like spectacle sometimes imagined. There are several spacecraft that will meet Halley's comet and collect an enormous amount of data - Giotto is one of them (725s1-s6). ICE is another spacecraft which has recently had a unique comet encounter (725s7-s10). Fancy a look at the comet through the country's biggest refractor telescope? Find out how on 724s10. Time to leave Britain? 724s1 More